package com.wiscamp.ninechapters.problems.math;

import java.io.Serializable;

/**
 * 面积单位
 */
public class AreaUnit implements Serializable {
    public static final String SQUARE_MILLIMETRE = "mm^2";

    public static final String SQUARE_CENTIMETER = "cm^2";

    public static final String SQUARE_DECIMETRE = "dm^2";

    public static final String SQUARE_METER = "m^2";

    public static final String SQUARE_KILOMETER = "km^2";
}
